this is VerilogHDL class Are these legal identifiers a syste

this is VerilogHDL class

Are these legal identifiers?

a. system1

b. 1reg

c. $latch

d. exec$

Solution

the legal identifiers means it is having an unique name to use or identify the object.the identifiers can contains \"text\" or \"_\" or \"$\" or numbers.

so only system1 is legal identifier remaining all are not a legal identifiers.